Merging and lane change acceleration prediction energy management

Patent metadata

Field	Value
Publication number	US-10710588-B2
Application number	US-201715603231-A
Country	US
Kind code	B2
Filing date	May 23, 2017
Priority date	May 23, 2017
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

Methods, systems, and apparatus for a lane assist system that prepares the vehicle to move from a current lane to an adjacent lane. The lane assist system includes a sensor for detecting one or more surrounding vehicles in an adjacent lane and an electronic control unit. The electronic control unit is connected to the sensor. The electronic control unit is configured to predict or determine predict or determine that the vehicle intends to or is moving from a current lane to an adjacent lane. The electronic control unit is configured to determine one or more locations of the one or more surrounding vehicles in the adjacent lane, and control operations of the vehicle to prepare the vehicle for a lane change to a first open space or area in the adjacent lane based on the one or more locations of the one or more surrounding vehicles.

First claim

What is claimed is:

1. A lane assist system for a vehicle, comprising:
a sensor configured to detect a first surrounding vehicle and a second surrounding vehicle in an adjacent lane; and
an electronic control unit coupled to the sensor and configured to:
obtain driver behavior patterns of a driver of the vehicle,
predict or determine that the vehicle will change lanes from a current lane to the adjacent lane based on the driver behavior patterns of the driver of the vehicle,
determine a relative distance between the first surrounding vehicle and the second surrounding vehicle, and
control an amount of power provided or generated to accelerate or decelerate the vehicle into an open space or area that is in between the first surrounding vehicle and the second surrounding vehicle in the adjacent lane when the relative distance is greater than a threshold distance.

2. The lane assist system of claim 1 , further comprising:
a battery for storing electrical energy;
a battery management unit for managing charging and discharging of the electrical energy of the battery to power movement of the vehicle; and
a motor that uses the electrical energy to power movement of the vehicle.

3. The lane assist system of claim 1 , wherein the electronic control unit is configured to determine a location of the open space or area in the adjacent lane based on a location of the first surrounding vehicle and a location of the second surrounding vehicle.

4. The lane assist system of claim 3 , wherein the electronic control unit is configured to:
determine the location of the first surrounding vehicle in the adjacent lane;
determine the location of the second surrounding vehicle in the adjacent lane; and
compare the relative distance to the threshold distance.

5. The lane assist system of claim 4 , wherein the threshold distance is based on at least one of weather condition information, road condition information or surrounding vehicle information.

6. The lane assist system of claim 1 , further comprising:
one or more external databases that provide surrounding vehicle information of one or more surrounding vehicles; and
a navigation unit for providing a current location of the vehicle;
wherein the electronic control unit is connected to the navigation unit and the one or more external databases via a network and is configured to determine a location of the first surrounding vehicle and a location of the second surrounding vehicle based on the current location of the vehicle and the surrounding vehicle information.

7. The lane assist system of claim 1 , further comprising:
a user interface element for receiving driver input that indicates that the driver intends to merge the vehicle into the adjacent lane;
wherein the electronic control unit is configured to:
obtain the driver input that indicates that the driver intends to merge into the adjacent lane, or
obtain a lane change event, and
autonomously or automatically, predict or determine that the vehicle will change lanes from the current large to the adjacent lane further based on the lane change event, or
predict or determine that the vehicle will change lanes from the current lane to the adjacent lane further based on the driver input.

8. The lane assist system of claim 1 , further comprising:
a user interface configured to provide an indication that the vehicle is preparing to move from the current lane to the adjacent lane;
wherein the electronic control unit is configured to provide the indication that the vehicle is preparing to move to the user interface.

9. The lane assist system of claim 1 , wherein the electronic control unit is configured to determine whether the vehicle needs to accelerate or decelerate to move into the open space or area in the adjacent lane.

10. The lane assist system of claim 9 , wherein to control the amount of power provided or generated the electronic control unit is configured to spool an engine of the vehicle if the vehicle needs to accelerate.

11. The lane assist system of claim 1 , further comprising:
a memory configured to store the driver behavior patterns;
wherein the electronic control unit is configured to:
determine an identity of the driver, and
obtain the driver behavior patterns of the driver based on the identity of the driver.

12. The lane assist system of claim 1 , wherein the driver behavior patterns include an indication of a tendency or a likelihood of the driver to switch lanes.

13. A method for controlling operation of a vehicle to assist in lane changing, comprising:
determining or predicting, by an electronic control unit, that the vehicle will change lanes from a current lane to an adjacent lane based on driver behavior patterns of a driver of the vehicle;
detecting, by the electronic control unit, a first surrounding vehicle and a second surrounding vehicle in the adjacent lane;
determining, by the electronic control unit, a relative distance between the first surrounding vehicle and the second surrounding vehicle in the adjacent large; and
controlling, by the electronic control unit, an amount of power provided or generated to accelerate or decelerate the vehicle into an open space or area that is in between the first surrounding vehicle and the second surrounding vehicle in the adjacent lane when the relative distance is greater than a threshold distance.

14. The method of claim 13 , wherein controlling the amount of power provided or generated includes at least one of spooling an engine of the vehicle or managing electrical discharge of a battery of the vehicle.

15. The method of claim 13 , further comprising:
determining, by the electronic control unit, a location of the open space or area; and
determining whether the vehicle needs to accelerate or decelerate to move into the location of the open space or area.

16. A lane assist system for a vehicle, comprising:
an electronic control unit configured to:
determine a first location of a first surrounding vehicle in a first adjacent lane,
determine a second location of a second surrounding vehicle in the first adjacent lane,
predict or determine that the vehicle will change lanes from a current lane to the first adjacent lane based on driver behavior patterns of a driver of the vehicle,
determine a relative distance between the first surrounding vehicle and the second surrounding vehicle based on the first location and the second location,
determine a variable threshold distance based on a speed of the first surrounding vehicle and a speed of the second surrounding vehicle, and
control operations of the vehicle to move the vehicle into an open space or area that is in between the first surrounding vehicle and the second surrounding vehicle in the first adjacent lane when the relative distance is greater than the variable threshold distance including an amount of power provided or generated to accelerate or decelerate the vehicle into the open space or area.

17. The lane assist system of claim 16 , wherein the electronic control unit is further configured to:
obtain a lane merge indicator; and
predict or determine that the vehicle will change lanes from the current lane to the first adjacent lane based on the lane merge indicator.

18. The lane assist system of claim 16 , wherein the electronic control unit is configured to control the operations of the vehicle in response to the prediction or determination that the vehicle will change lanes from the current lane to the first adjacent lane.

19. The lane assist system of claim 16 , where

Assignees

• Toyota Eng & Mfg North America

Inventors

• Geller Benjamin M

Classifications

• Y02T10/72

  Electric energy management in electromobility · CPC title

• Y02T90/16

  Information or communication technologies improving the operation of electric vehicles · CPC title

• B60L2260/32

  Auto pilot mode · CPC title

• B60W2555/20

  Ambient conditions, e.g. wind or rain · CPC title

• B60W2050/146

  Display means · CPC title